"X" marks the spot of an echo chamber in the middle of a plaza.

A building so large that it has its own weather.

Opened in 1976, this monster-sized version of the fast-food franchise is sometimes called the Epic McD.

A glimpse at Walt Disney's vision for a "community of tomorrow," in miniature.

The Gulf’s longest fishing pier is a year-round paradise for catch-and-release whoppers.

This replica of the Greek structure is in the heart of Nashville.

You have to love a museum with a truly dedicated focus. A focus on Superman, for example.

A collection of outdoor art by renowned muralist Robert Dafford depicts the history of a flooded city.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

While knives are the main feature in this store, visitors will also find dinosaur bones and meteorites.

This winding road of 318 curves is a must-visit for (careful) motorcycle and sports car enthusiasts.

Mile-long cave system near Great Smoky Mountains.

In one of America’s oldest mountain ranges, a long-awaited section of a scenic highway is now open to the public.

Once a gas station, this flightless airplane beside the Old Dixie Highway now houses a barbershop.

Stroll around the headstones of notable figures from Knoxville's history, as well as towering monoliths and melancholic headstones.

The world's largest version of this iconic puzzle cube is located in Knoxville, Tennessee.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.